# `NodesAdaptiveSelection` [interface-NodesAdaptiveSelection]

| Name | Type | Description |
| - | - | - |
| `avg_queue_size` | [long](./long.md) | The exponentially weighted moving average queue size of search requests on the keyed node. |
| `avg_response_time_ns` | [long](./long.md) | The exponentially weighted moving average response time, in nanoseconds, of search requests on the keyed node. |
| `avg_response_time` | [Duration](./Duration.md) | The exponentially weighted moving average response time of search requests on the keyed node. |
| `avg_service_time_ns` | [long](./long.md) | The exponentially weighted moving average service time, in nanoseconds, of search requests on the keyed node. |
| `avg_service_time` | [Duration](./Duration.md) | The exponentially weighted moving average service time of search requests on the keyed node. |
| `outgoing_searches` | [long](./long.md) | The number of outstanding search requests to the keyed node from the node these stats are for. |
| `rank` | string | The rank of this node; used for shard selection when routing search requests. |